656375329 has 4 divisors (see below), whose sum is σ = 656534340. Its totient is φ = 656216320.

The previous prime is 656375327. The next prime is 656375347. The reversal of 656375329 is 923573656.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 623001600 + 33373729 = 24960^2 + 5777^2 .

It is a cyclic number.

It is not a de Polignac number, because 656375329 - 2¹ = 656375327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656375327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73144 + ... + 81625.

It is an arithmetic number, because the mean of its divisors is an integer number (164133585).

Almost surely, 2^656375329 is an apocalyptic number.

It is an amenable number.

656375329 is a deficient number, since it is larger than the sum of its proper divisors (159011).

656375329 is a wasteful number, since it uses less digits than its factorization.

656375329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159010.

The product of its digits is 1020600, while the sum is 46.

The square root of 656375329 is about 25619.8229697240. The cubic root of 656375329 is about 869.0619779471.

The spelling of 656375329 in words is "six hundred fifty-six million, three hundred seventy-five thousand, three hundred twenty-nine".